1. Preheat oven to 350 degrees F. If using a metal cake tin, grease it; I used a silicon cake tin. In a cup, whisk together milk and ground flax vigorously with a fork. Set aside.
2. In a large mixing bowl, mix together the dry ingredients. Making a well in the dry mixture, add the flax mixture, followed by the wet ingredients (through vanilla), and mix well.
3. Fold in the carrot, raisins and walnuts. If desired, add on additional walnut halves to the top of the cake for decoration. Bake for 40 minutes.
Source of recipe: I wrote this recipe.